초록 ▼

In a mill drying plant with a roller grinding mill and preferably in a cement production plant operated in compound with a clinker burning process and having a kiln fan and a fan downstream of a filter, a mill fan is connected up-stream of the roller grinding mill as a further fan. This makes it pos

In a mill drying plant with a roller grinding mill and preferably in a cement production plant operated in compound with a clinker burning process and having a kiln fan and a fan downstream of a filter, a mill fan is connected up-stream of the roller grinding mill as a further fan. This makes it possible to overcome the resistance of the roller grinding mill blade ring and to force the pressure zero point into the roller grinding mill, so that there is a low vacuum above the blade ring in the milling and classifying chamber and in the filter.

대표청구항 ▼

[ What is claimed is:] [1.]1. Milling plant with a roller grinding mill, particularly an air-swept roller mill, having a milling pan, a blade ring, a classifier, a filter, and a dust-gas pipe between the filter and the roller grinding mill, and having an exhaust fan, located downstream of the filter

[ What is claimed is:] [1.]1. Milling plant with a roller grinding mill, particularly an air-swept roller mill, having a milling pan, a blade ring, a classifier, a filter, and a dust-gas pipe between the filter and the roller grinding mill, and having an exhaust fan, located downstream of the filter and supplying a sub-atmospheric pressure to the filter, the roller grinding mill and the dust-gas pipe,wherein a mill fan is positioned upstream of the roller grinding mill and forces the necessary gas flow into the roller grinding mill andwherein the mill fan in cooperation with the exhaust fan are capable of setting a predeterminable pressure level upstream, within and downstream of the roller grinding mill andwherein the pressure zero point can be located in the area of the blade ring and milling pan.